CM6460R-225 Filters

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Common Mode Chokes (CMCs) are high-frequency filter devices designed to reduce the noise and interference emitted from a variety of electronic circuits. CMCs are designed to control the interference of common-mode (CM) noise currents, which are generated when two-port systems like signal lines are connected to ground in an asymmetrical manner. CMCs are essentially inductors which contain winding coils and a ferromagnetic material core. These inductors are used in many electrical circuits, particularly high-frequency ones, for the purpose of suppressing common-mode interference.

The CM6460R-225 is a type of CMC manufactured by TDK. It is a very small, low profile, high performance common mode choke. The CM6460R-225 is designed to effectively suppress common mode noise generated by high-speed circuits operating at frequencies up to 600 MHz. It has up to 60 dB of common mode noise suppression in its highest band frequency range. The CM6460R-225 comes in a tiny 0402 package and weighs only 0.6 grams. It also features a maximum current of 0.5 A and a maximum DC resistance of less than 0.2 ohms. It also has an inductance range from 100 microhenries to 1 millihenries.

The CM6460R-225 is suited for a wide array of applications and can be used in many different types of electronic circuits. It is most commonly used in high-speed automotive and telecom systems, such as antenna systems, radio navigation systems, and high-speed serial I/O systems. It can also be used in medical equipment, laptops, and DC-DC converters, and other high-speed circuits requiring common-mode noise suppression. The CM6460R-225 can also be used in industrial systems like PLC controllers and motor controllers, as well as optical communication systems.

The working principle of common mode chokes is based on the fact that they act as inductors in the circuit, meaning they can impede the flow of ac current. In essence, CMCs act as a filter to eliminate or reduce noise and interference due to common-mode currents. CMCs typically have two windings which are connected to opposite sides of the power line. When the power line transmits noise or interference, the CMC blocks these signals and prevents them from entering the electrical circuit.

The CM6460R-225 incorporates this same basic principle. Its two small windings are arranged on the same axial plane, allowing for a high coupling factor between them. This increases the suppression of the common mode noise, which is given off by high speed circuits. The windings are also constructed using high permeability material, which further increases the CMC’s suppression ability.

The CM6460R-225 is a high-performance, low-profile CMC that is designed to reduce common mode noise in a variety of high-speed circuits. It comes in a small 0402 package and can be used in a variety of applications, from automotive and telecom systems, to medical equipment and industrial applications. Its two small windings are designed to provide maximum suppression of common noise currents, and its high permeability material further increases its capabilities.

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